v3.25.4
Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Increase (Decrease) in Stockholders' Equity        
Beginning balance $ 4,844 $ 4,164 $ 4,515 $ 3,810
Other comprehensive loss, net of tax (128) (191) (23) (116)
Ending balance 5,307 4,083 5,307 4,083
Total        
Increase (Decrease) in Stockholders' Equity        
Beginning balance (253) (305) (358) (381)
Other comprehensive income (loss) before reclassifications (220) (254) (47) (245)
Amounts reclassified from accumulated other comprehensive loss, net 88 63 20 130
Other comprehensive loss, net of tax (132) (191) (27) (115)
Ending balance (385) (496) (385) (496)
Currency Translation        
Increase (Decrease) in Stockholders' Equity        
Beginning balance (194) (224) (378) (340)
Other comprehensive income (loss) before reclassifications (9) (217) 175 (101)
Amounts reclassified from accumulated other comprehensive loss, net 0 0 0 0
Other comprehensive loss, net of tax (9) (217) 175 (101)
Ending balance (203) (441) (203) (441)
Cash Flow Hedges        
Increase (Decrease) in Stockholders' Equity        
Beginning balance (58) (97) 16 (62)
Other comprehensive income (loss) before reclassifications (216) (37) (234) (141)
Amounts reclassified from accumulated other comprehensive loss, net 88 63 32 132
Other comprehensive loss, net of tax (128) 26 (202) (9)
Ending balance (186) (71) (186) (71)
Postretirement Benefit Plans        
Increase (Decrease) in Stockholders' Equity        
Beginning balance (1) 16 4 21
Other comprehensive income (loss) before reclassifications 5 0 12 (3)
Amounts reclassified from accumulated other comprehensive loss, net 0 0 (12) (2)
Other comprehensive loss, net of tax 5 0 0 (5)
Ending balance $ 4 $ 16 $ 4 $ 16